sheep brain via dissection Flashcards
(14 cards)
What is the function of the olfactory lobes in the sheep brain?
They process smells; more developed in sheep due to reliance on olfaction.
What is the role of the optic chiasma?
It is where the optic nerves partially cross, helping with binocular vision.
What is the function of the pons and medulla oblongata?
They control vital autonomic functions like breathing and heart rate.
What does the cerebellum regulate?
Balance, coordination, and fine motor control.
What is the role of the lateral and third ventricles in the brain?
They are filled with cerebrospinal fluid (CSF), which cushions the brain and removes waste.
What connects the third and fourth ventricles?
The cerebral aqueduct.
What is the thalamus responsible for?
It relays sensory information to the cerebral cortex.
What structure is essential for memory processing and is visible in horizontal cuts?
The hippocampus.
What is the function of the basal ganglia (e.g., caudate, putamen, globus pallidus)?
They regulate voluntary motor movements and procedural learning.
Which cranial nerve controls most eye movements?
Oculomotor nerve (Cranial Nerve III).
What cranial nerve is involved in chewing?
Trigeminal nerve (Cranial Nerve V).
What does the spinal accessory nerve control?
Neck and shoulder muscles.
What should be noted about white matter during brain slicing?
It appears lighter and indicates the brain’s communication pathways.
What key structure is involved in connecting the two hemispheres of the brain?
The corpus callosum.
